Figure 2. Tracebacks of sources of raspberries served at events associated with clusters of cases of cyclosporiasis in North America in 1997. *Includes three events (one traced to Guatemalan exporter A and two traced to Guatemalan exporter B) for which there might have been additional branches of the tracebacks without well-documented data; only well-documented data are included here. A farm was considered linked to an event if it contributed to a shipment of raspberries that could have been used at that event.

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